BITMAP1.C
上传用户:tengyuc
上传日期:2007-08-14
资源大小:722k
文件大小:5k
- #include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <GL/glut.h>
#define OPENGL_WIDTH 24
#define OPENGL_HEIGHT 13
GLenum rgb, doubleBuffer;
float boxA[3] = {0, 0, 0};
float boxB[3] = {-100, 0, 0};
float boxC[3] = {100, 0, 0};
float boxD[3] = {0, 95, 0};
float boxE[3] = {0, -105, 0};
GLubyte OpenGL_bits1[] = {
0x00, 0x03, 0x00,
0x7f, 0xfb, 0xff,
0x7f, 0xfb, 0xff,
0x00, 0x03, 0x00,
0x3e, 0x8f, 0xb7,
0x63, 0xdb, 0xb0,
0x63, 0xdb, 0xb7,
0x63, 0xdb, 0xb6,
0x63, 0x8f, 0xf3,
0x63, 0x00, 0x00,
0x63, 0x00, 0x00,
0x63, 0x00, 0x00,
0x3e, 0x00, 0x00,
};
GLubyte OpenGL_bits2[] = {
0x00, 0x00, 0x00,
0xff, 0xff, 0x01,
0xff, 0xff, 0x01,
0x00, 0x00, 0x00,
0xf9, 0xfc, 0x01,
0x8d, 0x0d, 0x00,
0x8d, 0x0d, 0x00,
0x8d, 0x0d, 0x00,
0xcc, 0x0d, 0x00,
0x0c, 0x4c, 0x0a,
0x0c, 0x4c, 0x0e,
0x8c, 0xed, 0x0e,
0xf8, 0x0c, 0x00,
};
GLubyte logo_bits[] = {
0x00, 0x66, 0x66,
0xff, 0x66, 0x66,
0x00, 0x00, 0x00,
0xff, 0x3c, 0x3c,
0x00, 0x42, 0x40,
0xff, 0x42, 0x40,
0x00, 0x41, 0x40,
0xff, 0x21, 0x20,
0x00, 0x2f, 0x20,
0xff, 0x20, 0x20,
0x00, 0x10, 0x90,
0xff, 0x10, 0x90,
0x00, 0x0f, 0x10,
0xff, 0x00, 0x00,
0x00, 0x66, 0x66,
0xff, 0x66, 0x66,
};
static void Init(void)
{
if (!rgb) {
glutSetColor(0, 0.0, 0.0, 0.0);
glutSetColor(1, 1.0, 0.0, 0.0);
glutSetColor(2, 0.0, 1.0, 0.0);
glutSetColor(3, 1.0, 1.0, 0.0);
glutSetColor(4, 0.0, 0.0, 1.0);
glutSetColor(5, 1.0, 0.0, 1.0);
glutSetColor(6, 0.0, 1.0, 1.0);
glutSetColor(7, 1.0, 1.0, 1.0);
}
glClearColor(0.0, 0.0, 0.0, 0.0);
glClearIndex(0.0);
}
static void Reshape(int width, int height)
{
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(-175, 175, -175, 175);
glMatrixMode(GL_MODELVIEW);
}
static void Key(unsigned char key, int x, int y)
{
switch (key) {
case 27:
exit(0);
}
}
static void Draw(void)
{
glClear(GL_COLOR_BUFFER_BIT);
// 指定像素操作的光栅位置
glRasterPos3fv(boxA);
- // 设置像素存储格式
glPixelStorei(GL_UNPACK_ROW_LENGTH, 24);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 8);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 2);
glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- // 绘制位图
glBitmap(16, 12, 8.0, 0.0, 0.0, 0.0, logo_bits);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
glPixelStorei(GL_UNPACK_LSB_FIRST, GL_TRUE);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
// 绘制位图1
(rgb) ? glColor3f(1.0, 1.0, 1.0) : glIndexi(7);
glRasterPos3fv(boxB);
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0,
OpenGL_bits1);
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0,
OpenGL_bits2);
// 绘制位图2
(rgb) ? glColor3f(0.0, 1.0, 1.0) : glIndexi(6);
glRasterPos3fv(boxC);
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0,
OpenGL_bits1);
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0,
OpenGL_bits2);
// 绘制位图3
(rgb) ? glColor3f(1.0, 0.0, 1.0) : glIndexi(5);
glRasterPos3fv(boxD);
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0,
OpenGL_bits1);
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0,
OpenGL_bits2);
// 绘制位图4
(rgb) ? glColor3f(1.0, 1.0, 0.0) : glIndexi(3);
glRasterPos3fv(boxE);
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0,
OpenGL_bits1);
glBitmap(OPENGL_WIDTH, OPENGL_HEIGHT, OPENGL_WIDTH, 0.0, OPENGL_WIDTH, 0.0,
OpenGL_bits2);
if (doubleBuffer) {
glutSwapBuffers();
} else {
glFlush();
}
}
static void Args(int argc, char **argv)
{
GLint i;
rgb = GL_TRUE;
doubleBuffer = GL_FALSE;
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-ci") == 0) {
rgb = GL_FALSE;
} else if (strcmp(argv[i], "-rgb") == 0) {
rgb = GL_TRUE;
} else if (strcmp(argv[i], "-sb") == 0) {
doubleBuffer = GL_FALSE;
} else if (strcmp(argv[i], "-db") == 0) {
doubleBuffer = GL_TRUE;
}
}
}
int main(int argc, char **argv)
{
GLenum type;
glutInit(&argc, argv);
Args(argc, argv);
type = (rgb) ? GLUT_RGB : GLUT_INDEX;
type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
glutInitDisplayMode(type);
glutInitWindowSize(300, 300);
glutCreateWindow("Bitmap Test");
Init();
glutReshapeFunc(Reshape);
glutKeyboardFunc(Key);
glutDisplayFunc(Draw);
glutMainLoop();
}